Mobile Electronics Glossary of Terms and Definitions - G
| Mobile Electronics Glossary - G |
| • |
Gain - The amount of amplification used in an electrical circuit. |
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Gauge (wire) - The diameter of a wire. The higher the number, the thinner
the wire. |
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Giga - Prefix meaning 109 or 1,000,000,000 (1 billion in the US) |
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Golden Ratio - Two quantities are in the golden ratio if the ratio of the sum of the quantities to the larger quantity is equal to the ratio of the larger quantity to the smaller one. The golden ratio is an irrational mathematical constant, approximately 1.6180339887. A+B is to A as A is to B. Often applied to speaker enclsoures and listening room designs. Example: Width (W) = 1.0, Depth = 0.6180339887(W), Height = 1.6180339887(W). |
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Googol - A googol is the number 10100, that is, 1 followed by one hundred zeroes. |
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Graphic (equalizer) - Refers to a type of equalizer with sliding controls that
create a pattern representing a graph of frequency response changes. |
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Ground - An electrical line with the same electrical potential as the chassis
of the vehicle, most commonly negative 12 volts DC. |
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Ground Loop - The condition created when two or more paths for
electricity are created in a ground line, or when one or more paths are created in
a shield or an audio cable. This can create undesirable noise such as a high pitched
whine when the vehicle is running or pops and clicks when other devices are used in
the vehicle. |
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Ground Potential - In an automobile this is the electrical potential of the
vehicles chassis, specifically the chassis of the alternator when the vehicle is running. A circuit, terminal or chassis is said to be at ground potential when
it is used as a reference point for other potentials in the system. |
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GWA - Ground While Armed or Ground While Active |
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GWR - Ground While Running |
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